/**
* collect only status descriptions of not deleted nodes
*/
CourseEditorTreeNode tmp = (CourseEditorTreeNode) node;
if (!tmp.isDeleted()) {
CourseNode cn = tmp.getCourseNode();
String key = cn.getIdent();
StatusDescription[] allSds = cn.isConfigValid(cev);
if (allSds.length > 0) {
for (int i = 0; i < allSds.length; i++) {
StatusDescription sd = allSds[i];
if (sd != StatusDescription.NOERROR) {
if (!statusDescs.containsKey(key)) {